# Index of refraction

**URL:** <https://forum.formlabs.com/t/index-of-refraction/9226>\
**Category:** Support & Troubleshooting\
**Created:** [August 10, 2016, 8:59am UTC](https://forum.formlabs.com/t/index-of-refraction/9226 "2016-08-10T08:59:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bernd](https://avatars.discourse-cdn.com/v4/letter/b/977dab/32.png) [@bernd](https://forum.formlabs.com/u/bernd)\
**Post date:** [August 10, 2016, 8:59am UTC](https://forum.formlabs.com/t/index-of-refraction/9226/1 "2016-08-10T08:59:57Z")

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I am wondering, what is the index of refraction of the clear material after curing?

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**Author:** ![amos](https://avatars.discourse-cdn.com/v4/letter/a/ebca7d/32.png) [@amos](https://forum.formlabs.com/u/amos)\
**Post date:** [August 10, 2016, 1:46pm UTC](https://forum.formlabs.com/t/index-of-refraction/9226/2 "2016-08-10T13:46:36Z")

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Hi! I believe the index is 1.5304.

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**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\
**Post date:** [August 24, 2016, 2:00pm UTC](https://forum.formlabs.com/t/index-of-refraction/9226/3 "2016-08-24T14:00:05Z")

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